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Dynamics of elasto-viscoplastic plates and shells
In this paper, the problem of the elasto-viscoplastic dynamic behaviour of geometrically non-linear plates and shells is studied under the assumption...
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Large deformation finite element analysis with inelastic constitutive models including damage
In this paper, the kinematic quantities needed for the description of finite deformations with inelastic constitutive models are summarized and the...
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Simulation and design of metal forming problems by the boundary element method—boundary conditions and sensitivity equations
Proper modeling of boundary conditions is of crucial importance in the simulation and design of metal forming processes. This paper discusses such...
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A general theory of finite inelastic deformation of metals based on the concept of unified constitutive models
First, a detailed survey of kinematics of finitely deformed inelastic solids is given. The concept is based on the multiplicative decomposition of...
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Large Deformation of Axisymmetric Viscoplastic Shells
In different fields of applications, thin structures are subject to finite strain elasto-viscoplastic deformations. Metal sheet forming is a well...
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A Newton-Multigrid algrithm for elasto-plastic/viscoplastic problems
This work is concerned with large scaled nonlinear systems of equations resulting from discretization of problems in plasticity and viscoplasticity...
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Viscoplastic Adaptation with regard to Discontinuous Bifurcation
The wide acceptance of Load and Resistance Factor Design, LRFD, methodology has resurrected the interest in elastic shakedown and inelastic...
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Additional Cyclic Hardening of metals under Tension-Torsion and Triaxial Tension-Compression Loadings
The additional cyclic hardening due to the nonproportionality of the loading has been shown for the first time by H. Lamba and O. Sidebottom, [1]....
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Embedded Localized Strain Zone Constitutive Model in Finite Strain and Finite Rotation
A framework to establish a constitutive model for solids exhibiting strain localization band formation is considered in this paper. The development...
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Embedded Localized Strain Zone Constitutive Model in Finite Strain and Finite Rotation
A framework to establish a constitutive model for solids exhibiting strain localization band formation is considered in this paper. The development...
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Dynamics of Viscoplastic Plates by a Modal BEM
In recent years the BEM has undergone an extensive development in the field of plate theory regarding sophisticated problems in, such as plate...
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Deformation Instabilities at Finite Inelastic Strains
The aim of this work is the numerical analysis and simulation of shearband localization in plastic flow processes within ductile single (fcc)...
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Steady Cyclic State of a Structure: Methods of its Direct Determination
Unlike the majority of publications in which the problem in question is considered within the framework of the shakedown theory and its specific...
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Sensitivity analysis of hyperelastic-viscoplastic solids undergoing large deformations
This paper presents a new algorithm for sensitivity recovery in nonlinear solid mechanics problems. The material behavior is modeled by a unified...
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Instability phenomena and adiabatic shear band localization in thermoplastic flow processes
The main objective of the paper is the development of the viscoplastic regularization procedure valid for a broad class of thermodynamic plastic flow...
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An efficient algorithm for elasto-viscoplastic vibrations of multi-layered composite beams using second-order theory
An efficient time-domain algorithm for plane non-linear flexural vibrations of multi-layered composite beams, which are driven into the inelastic...
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Effect of kinematic hardening on the initiation and growth of shear bands in plane strain deformations of a thermoviscoplastic solid
We study dynamic thermomechanical deformations of an elasto-viscoplastic body deformed in plane strain compression at a nominal strain-rate of 5 000...
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A robust kinematic hardening rule for cyclic plasticity with ratchetting effects Part II. Application to nonproportional loading cases
Performance of the proposed kinematic hardening rule is examined using several examples of cyclic plasticity phenomena observed in experiments....
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A study on rate-type constitutive equations and the existence of a free energy function
Demanding that rate-type constitutive equations in solid mechanics has to be in accord with the thermodynamical requirement of the existence of a...
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On multiple spins and texture development. Case study: kinematic and orthotropic hardening
A general constitutive formulation for large inelastic deformations is presented, employing multiple constitutive and plastic spins in the rate...